According to the findings from the European narcotics agency EMCDDA, Copenhageners sniff enough lines for traces of the drug to be measured in the city’s waste water.

Tests carried out on weekends – the time of week when the most cocaine is snorted – showed that 255mg of cocaine was ingested per 1,000 people per day, compared to 92mg in Oslo and 36mg in Gothenburg.

“The tests show that a city like Copenhagen is ranked high in terms of cocaine remnants in waste water compared to other cities in Scandinavia,” Liesbeth Vandam, an analyst at EMCDDA, said according to Ekstra Bladet tabloid.

No coke Tuesdays However, compared to many other European cities outside the Nordic region, Copenhagen doesn’t quite stack up. Larger cities like London, Amsterdam and Barcelona have far more cocaine remnants in their waste water, as do other similarly-sized cities such as Zurich, Valencia and Dortmund.

Copenhagen waste water tests taken during the week showed that there were no cocaine remnants found on Tuesdays, while Friday ranked higher than any other day of the week with 323 mg.

The Danes may be Scandinavian leaders when it comes to cocaine, but its Nordic brethren ingest more amphetamines and methamphetamines, according to the report.